I am very interested in trading my week old ETX 90 EC for a binoviewer. I was planning on traveling with it but will no longer be needing it as I wont be traveling. I will consider all brands of binoviewers (lumicon, celestron, teleview etc). If you have a binoviewer you were thinking of upgrading or selling and would like to trade it for a travelscope please let me know. Also if I sell my ETX I will be looking to buy one with the proceeds. LMK.